as a huge fan of linguistics, spelling and grammar, I will say this very confidently: in this case, spelling and grammar don’t matter even one bit. but if this kind of thing matters so much to you, you should also care about typography and not leave a space before a question mark.
English may not be their first language (since the question mark thing is common in French, for example), though of course if that were true, their comment looks even worse.
as a huge fan of linguistics, spelling and grammar, I will say this very confidently: in this case, spelling and grammar don’t matter even one bit. but if this kind of thing matters so much to you, you should also care about typography and not leave a space before a question mark.
English may not be their first language (since the question mark thing is common in French, for example), though of course if that were true, their comment looks even worse.